Jinn (Arabic: Ø§ÙØ¬Ùââ, al-jinn), also romanized as djinn or anglicized as genies (with the more broad meaning of spirits), are supernatural creatures in early Arabian and later Islamic mythology and theology. An individual member of the jinn is known as a jinni, djinni, or genie (Ø§ÙØ¬ÙÙ, al-jinnÄ«). They are mentioned frequently in the Quran (the 72nd sura is titled SÅ«rat al-Jinn) and other Islamic texts.
Once you tighten up and lose range of motion in your arms, it reduces stride length, which is difficult to get back without burning a lot of energy. While sprinting, it is important to get a full range of motion with the arms. Remember, speed is a product of stride length and stride frequency. Stride length and frequency are determined, in part, by the motion of the arms. If you are lazy or passive with your arm action, you are limiting your potential for speed.
ARMS. 1  Your arm movement matters, as it helps propel you forward during running. 2  Your arm movement also helps to minimize rotation of the torso. 3  Keep your elbows bent at an approximately 90 degree angle. 4  Your arms should be relaxed and move in concert with your leg stride. 5  Swing your arms up and down.